Lubricating device



Aug- 8, 1939 P. MANISCALco 2,169,105

LUBRICATING DEVICE Original Filed April 10, 1937 Patented Aug. 8, 1939 PATENT OFFICE LUBRICATCING DEVICE Pietro Manscalco, Toledo, Ohio Original application April 10, 1937, Serial No. 136,114. Divided and this application August 20, 1937, Serial No. 160,100

3 Claims.

ne of the main objects of this invention is to provide a lubricating device which is especially adapted to be mounted in the fluid intake mouth of a fluid compressor, and which can be selectively adjusted in order to automatically supply a certain small quantity of lubricating means to the fluid as the same is drawn into the compressor, whereby to properly lubricate the latters movable parts.

Another object of this invention is to provide an improved lubricating device which comprises adjustable valve means which is opened automatically by the entry of fluid with which the lubricant mingles, and is closed automatically when the suction ceases; and which further comprises adjustable valve means for accurately controlling the amount of lubricant passable thru the device.

These and various other objects and advantages are attained with this invention, as will become apparent from the following description, taken in connection with the accompanying drawing wherein the invention is illustrated in its preferred form, it being apparent that various other arrangements and forms of construction may be adopted for carrying out the objects and purposes of this invention.

This is a division of my prior application for patent for Fluid compressor, Serial No. 136,114, filed April 10, 1937, issued on April 19, 1938 as Patent No. 2,114,719.

In the drawing:

Fig. 1 is a vertical sectional View of a fluid cornpressor having my improved lubricating device mounted in position thereon.

Fig. 2 is a horizontal cross-sectional View of the mixing part of the lubricating means and of the fluid inlet mouth, taken on line 2-2 of Fig. 1.

The lubricating device disclosed in this application is particularly adapted for use with a fluid compressor 6, being mounted on the fluid intake channel or mouth I thereof, for automatically supplying the selected and desired quantity of lubricating material to the fluid taken into the intake channel. The lubricated iiuid is conveyed therefrom thru the branch channels 8 and 9 eX- tending thru stationary pistons I and toward the cylinder chambers provided in the cylinders I2 and I3 which are movably mounted on the ends of said pistons, said uid further passing thru the other channels 9', 9", |4 and I5, and thru the check valves I6 and I1, and control valve I8, as are more fully disclosed in the above identied parent case, and lubricating the movably connected parts of the compressor.

This lubricating device comprises a fluid intake member I9 having a flaring intake mouth and being threaded by its lower neck I9 into said channel I of the compressor; and a cup or lubricant container 20 which is removably mounted on 5 the intake member I9, for example, by means of a lower neck 2| of the cup which has threaded engagement in a collar 22 secured by ribs 22 in the upper central part of the intake member I9, so that the entering uid is drawn in around neck 2|.

This device further comprises a manually controlled valve in the form of a needle valve 23 provided in the cup, and being adjustable to regulate the flow of the fluid thru the discharge opening 24 in the bottom of the cup, or to close the opening. It also comprises an automatic control valve 25 threaded in said neck 2| and including a valve stem 26 having a tapering valve element 21 at its lower end, which is held yieldably against its zo valve seat by a spring 28 adjustably mounted by a nut 29 on the stem 26, adapted to adjust the closing pressure of this Valve.

As the iluid is drawn in thru intake member I9, the valve element 2'I is drawn from its closed 25 position to its open position thereby, and the lubricant is spread as it descends over the tapering element 21; while the manipulating of needle valve 23 selectively determines the desired quantity of lubricant to be admitted and commingled with the entering fluid, for lubricating the several `relatively movable parts of the compressor.

I claim:

l. A lubricating device adapted for use on a fluid compressor having a fluid inlet channel, said device comprising a fluid inlet member having a contracted neck removably mounted in said channel and having a flared inlet mouth thereon provided with a collar spaced from its inner wall, a lubricant cup having a contracted lower end removably mounted in the collar, to have the iluid flow thru the mouth and around the cup end into the channel, automatic valve means detachably mounted in the lower end of the cup including a lower valve seat and a spring-closed valve having a tapering valve element drawn up against said seat but readily drawn open by the entering uid and adapted to spread the lubricant for commingling with the fluid, and an adjustable needle valve threaded through the top of the cup for regulating the quantity of lubricant desired to flow therefrom.

2. A lubricating device comprising a lubricant cup having a lower neck, a fluid intake member consisting of a lower attaching part with a disu charge opening and an upper flared mouth and means therein for detachably receiving the neck to support the cup and let the uid enter around the neck, automatic valve means detachably mounted in the neck including a contracted end with a valve seat also a stem having a tapering lower valve element thereon adapted to close said seat and to be readily drawn open by the fluid owing around it while entering said intake mouth, a spring on the stem and means for adjusting its tension to regulate the closing pressure of the valve, the tapering element being adapted to spread the lubricant as it descends, and a manually adjustable valve in the cup for regulating the quantity of lubricant to pass therefrom to the automatic valve means.

3. A lubricating device adapted for use on a fluid compressor which has a fluid inlet channel, said device-consisting of a funnel-like uid inlet member including a lower contracted discharge portion removably mountable in said channel,

also including a ared upper inlet mouth having an integral collar therein spaced from its inner surface, a lubricant cup including a lower neck threaded in said collarl to have the uid enter around the neck within the mouth, automatic valve means detachably mounted in said neck including a, contracted lower end with a valve seat also a stem having a tapering lower valve element thereon adapted to close said seat and to be readily drawn open by the fluid entering around it into said intake mouth, a spring on the stern and means for adjusting its tension to regulate the closing pressure of the Valve, the tapering element being adapted to spread the lubricant thru the fluid as the latter descends thru the mouth, and a valve in the cup including a head operable manually above the cup, for regulating the quantity of lubricant to pass therefrom to the automatic valve means.

PIETRO MANISCALCO. 

